Higher order modulation effects on 5g nr downlink using cyclic redundancy check-aided polar coding technique

Dilli, Ravilla (2020) Higher order modulation effects on 5g nr downlink using cyclic redundancy check-aided polar coding technique. Telecommunications and Radio Engineering, 79 (20). pp. 1785-1800. ISSN 0040-2508

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Abstract

To have higher “spectrum efficiency” for the next generation optical and wireless networks, it is essential to combine the features of Polar codes with the modulation schemes of higher order. As per 3rd Generation Partnership Project (3GPP), 5G New Radio (NR) communication systems use polar coding techniques for control channels. As the polar codes are constructed based on the concept of channel polarization and achieves better performance than Low Density Parity Codes (LDPC) and Turbo codes. Polar coding can be applied for both uplink and downlink control information (UCI/DCI) for the 5G use cases like enhanced mobile broadband (eMBB), also for broadcast channel (BCH). We have focused on construction of one of the channel coding techniques mentioned by 3GPP for 5G NR communications system called “Cyclic Redundancy Check (CRC)-Aided Polar (CA-Polar)” coding technique. It describes the CA-Polar coding scheme using its main blocks to construct code words, encoders and decoders with “Rate Matching”. This paper models CA-Polar coded downlink channel using various modulation schemes whose order ranges from 1 to 8 corresponding to BPSK, QPSK, 16-QAM, 64-QAM, and 256-QAM over AWGN channel. The simulation parameters present BlockError, Bit-Error rates for normalized Signal-to-Noise Ratio (Eb/N0) in the range 0 dB to 5 dB, message lengths and effective code rates of CA-Polar coding technique.

Item Type: Article
Uncontrolled Keywords: polar codes, 3GPP, 5G NR, LDPC codes, turbo codes, QAM, CRC aided polar coding, rate matching
Subjects: Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 28 Jan 2021 09:34
Last Modified: 28 Jan 2021 09:34
URI: http://eprints.manipal.edu/id/eprint/156363

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